Clipping
AI Youtube Shorts Generator
Open-source alternative to Opus Clip, Vidyo.ai, Klap & SubMagic. Turn long-form YouTube videos into viral 9:16 shorts using LLM…
★ 5.2k starsMIT
View guide →Free YouTube-to-viral-clip cutter with auto transcription and 9:16 edits.
ViralCutter is an open-source clipping project by RafaelGodoyEbert (RafaelGodoyEbert/ViralCutter on GitHub). It has 419 GitHub stars and 99 forks, is released under the GPL-3.0 license, and was last updated on GitHub on 10 September 2026.
Point the tool at a recording, podcast, or stream VOD to mine for moments.
Transcription and scene analysis surface the clips most likely to perform.
Speaker tracking and captions reshape each clip for 9:16 feeds.
Render the finished shorts and post them where your audience lives.
Finds the punchiest moments in hours of footage automatically.
Keeps the speaker centered when cropping landscape to 9:16.
Burns in subtitles so clips work with the sound off.
Ranks candidate clips so you publish the strongest first.
Renders shorts sized for TikTok, Reels, and YouTube Shorts.
Many tools run fully on your machine — no uploads, no watermark.
Download the source and move into the project folder.
git clone https://github.com/RafaelGodoyEbert/ViralCutter.git
cd ViralCutterEvery project documents its own setup; start with install requirements.
cat README.md | head -60Follow the project’s launch command — Docker, pip, npm, or a binary release.
# see README for the exact launch commandThe code is open source and free. Local AI features cost nothing beyond your hardware; anything cloud-based needs your own API key.
GPL-3.0 licensed — free to use, but distributed modified versions must stay open source.
A GPU makes transcription and generation much faster, but lighter pipelines can run on CPU with smaller models — check the README for requirements.
Exports are standard vertical MP4s, ready for TikTok, Instagram Reels, and YouTube Shorts.
You own the pipeline: no per-clip credits, no watermark, and your footage never has to leave your machine.
Open-source alternative to Opus Clip, Vidyo.ai, Klap & SubMagic. Turn long-form YouTube videos into viral 9:16 shorts using LLM…
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Free and open — grab the source, star the repo, and start creating.